A man, named by sources as serving Labour MP Eric Joyce, (pictured), has been arrested on suspicion of assault following a disturbance at the Palace of Westminster
Scotland Yard confirmed officers detained a man in his 50s after being called to reports of an incident at a bar within the House of Commons at around 10.50pm last night.
He is currently being held in custody at a central London police station, the Met said.
A Scotland Yard spokesman said: “We were called at approximately 10.50pm last night to reports of a disturbance at a bar within the House of Commons.
“A man aged in his 50s was arrested by officers on suspicion of assault. He remains in custody in a central London police station. Inquiries are continuing.”
Mr Joyce, the MP for Falkirk since December 2000, served in the Army Education Corps before pursuing a career in politics.
In 2010 he resigned as shadow Northern Ireland minister after pleading guilty to failing to provide a breath test.
From 2003 Mr Joyce served as a Parliamentary Private Secretary (PPS) to a number of government ministers.
Mr Joyce quit as the PPS to Bob Ainsworth in 2009 due to his concerns over the war in Afghanistan.
Prior to that he had been a parliamentary aide to John Hutton, including the period when he was defence secretary, Mike O’Brien and Margaret Hodge.
According to his constituency webpage, Mr Joyce has a constituency office in Denny and an office in Portcullis House, Westminster.
During his time in Westminster he has held an interest in defence and military issues due to his army background, the website adds.
According to reports Conservative MP Stuart Andrew was head-butted and punched in the incident which happened in the Strangers Bar, a Commons bar reserved for MPs and their guests.
Labour MP Paul Farrelly was involved in a brawl in a different Commons bar in 2010.
The MP for Newcastle-under-Lyme claimed he “wrestled” a man to the floor in “self defence” following the altercation, which took place during a karaoke party at Parliament’s Sports and Social Club.
MP arrested on suspicion of assault after Commons disturbance
24th Feb 2012: – Labour MP Eric Joyce charged after fracas in a Commons bar